absoluteBLACK Oval 1X Chainring for 104/64 BCD
Item number: 58899
The absoluteBLACK Oval 1X 104/64 BCD chainring for 4-arm cranks with 104 or 64 mm bolt circle diameter
This oval 1-speed chainring by absoluteBLACK is compatible with four-arm MTB cranks that have a bolt circle diameter of 104 or 64 mm. Use it for such cranks from Shimano, SRAM, Race Face, FSA or other manufacturers. The chainring is made of premium quality aluminium and features a Narrow-Wide tooth profile that counteracts chain drop. Thanks to the oval shape, you optimise your pedalling movement, reduce the strain on your knees and move forward faster.
Specifications:
- Application:
- Cross Country, All Mountain, Enduro
- Mount:
- 104/64 mm bolt circle diameter, 4-arm
- Teeth:
- 26 T, 28 T, 30 T, 32 T, 34 T, 36 T
- Gearing:
- 1x10-speed, 1x11-speed, 1x12-speed, 1x1-speed singlespeed
- Type:
- Oval 10.2 - 14.4 %
Technical Information:
- Chainline:
- 46 mm (26/28 T), 48 mm (30 T), 48.5 mm (32 T), 50 mm (34/36 T)
- Material:
- aluminium (7075)
Compatibility:
- Crank:
- all 4-arm cranks with 104/64 mm bolt circle diameter, e.g. Shimano, SRAM, Race Face, FSA, e*thirteen etc.
- Chain:
- 10-speed or 11-speed / 12-speed chains from SRAM or KMC
Note from the manufacturer:
The 32 T chainring has integrated threads and requires bolts at least 6 mm long. The 30 T chainring includes special bolts and spacers.Features:
- oval shape for improved traction and performance uphill
- faster, looser riding with a natural pedalling motion with reduced strain on the knees
- ovality and timing (110.5 - 116.3°) matched to chainring size (TDC technology, Top Dead Center)
- special Narrow-Wide tooth profile improves chain retention
- chain guide not required
- durable construction, CNC-machined
- anodised
- premium quality
- designed in Great Britain, manufactured in Poland
Technology:
Oval ChainringsOval chainrings follow the natural physiology of humans. They maximise pedalling power the moment it is developed and minimise resistance when it is not. As a result, oval chainrings allow the rider to pedal more smoothly and stay loose on the climb.
In fact, your pedal stroke will feel " rounder" with an oval chainring than with a round chainring.
Compared to round chainrings, oval chainrings address more muscle groups - but each of them to a lesser degree. The total load of pedalling is therefore distributed over a larger muscle mass and the knees are less strained.
This has three advantages: 1. The legs remain fresher and more relaxed. 2. You can go uphill faster. 3. Spreading the load over more muscles reduces the susceptibility to cramps, even with great effort. Ultimately this will increase your riding pleasure. For MTB applications, the rear wheel traction is increased on loose and slippery surfaces, allowing you to make better progress on demanding terrain.
Models:
26 tooth:- Bolt Circle Diameter:
- 64 mm
- Manufacturer Number:
- OV26BK
28 tooth:
- Bolt Circle Diameter:
- 64 mm
- Manufacturer Number:
- OV28BK
30 tooth:
- Bolt Circle Diameter:
- 104 mm
- Manufacturer Number:
- OV30BK
32 tooth:
- Bolt Circle Diameter:
- 104 mm
- Manufacturer Number:
- OV32BK
34 tooth:
- Bolt Circle Diameter:
- 104 mm
- Manufacturer Number:
- OV34BK
36 tooth:
- Bolt Circle Diameter:
- 104 mm
- Manufacturer Number:
- OV36BK
Contents:
- 1 x absoluteBLACK 104/64 BCD 1X Oval chainring
- 2 x M8 T30 Torx aluminium bolts (only for 30 T)
- 2 x M5 T25 Torx steel bolts (only for 30 T)
- 2 x spacers (only for 30 T)
Order Together:
- Chainring Bolt Set 4-arm (not required for 30 T)
Optional accessories:
- Chainring Bolt Set for 30 T (as spare parts)
Weight:
- black/26 tooth: 35 g
- black/30 tooth: 36 g
- black/32 tooth: 41 g
- black/34 tooth: 44 g
- black/36 tooth: 53 g
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- 100 day return period
- Online since 1998
